Bug Description

Hello,

I tried to use bzr builder for two packages. One works juste fine, but for the other one I get this error :
dpkg-source -i -I -b acgvision-5.1.7
dpkg-source: info: using source format `3.0 (bzr)'
dpkg-source: error: uncommitted, not-ignored changes in working directory: debian/changelog debian/bzr-builder.manifest
dpkg-buildpackage: error: dpkg-source -i -I -b acgvision-5.1.7 gave error exit status 255

My source package is with source format 3.0(bzr)and so it dosnet work as the script modifies the changelog :
remi@intdeb03:~/workingdir2/acgvision-{debupstream}-daily201010181422$ bzr status
modified:
debian/changelog
unknown:
debian/bzr-builder.manifest